In The Globe: How the Earth Became Round (Reaktion, 2023), Dr. James Hannam presents a history of how we came to know that the earth is round, rather than flat.

The Globe tells the story of humanity's quest to discover the form of the world. Philosophers in ancient Greece deduced the true shape of the Earth in the fourth century BCE; the Romans passed the knowledge to India, and from there it spread to Baghdad and Central Asia. In early medieval Europe, Christians debated the matter but long before the time of Columbus, the Catholic Church had accepted that the Earth is round and not flat. However, it wasn’t until the seventeenth century that Jesuit missionaries finally convinced the Chinese that their traditional square-earth cosmology was mistaken.

An accessible challenge to long-established beliefs about the history of ideas, The Globe shows how the realization that our planet is a sphere deserves to be considered the first great scientific achievement.

This interview was conducted by Dr. Miranda Melcher whose doctoral work focused on post-conflict military integration, understanding treaty negotiation and implementation in civil war contexts, with qualitative analysis of the Angolan and Mozambican civil wars.

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